Inviting members
Step 1: Under your project name, you'll find a small menu.

Step 2: Click on 'Invite members.
This will open a page.

Step 3: Here you see all the current members.
Via the button 'Invite users' you will be able to invite new members

Step 4: Just drop the mail address and hit the button!
An invite will be sent to the email address.
